docstr: Test that reading past EOF does not raise an exception.
docstr_tok: ["Test","that","reading","past","EOF","does","not","raise","an","exception","."]
code: def testEof(self):
      """Test that reading past EOF does not raise an exception."""
  
      file_path = os.path.join(self._base_dir, "temp_file")
  
      with gfile.GFile(file_path, mode="w") as f:
          content = "testing"
          f.write(content)
          f.flush()
      with gfile.GFile(file_path, mode="r") as f:
          self.assertEqual(content, f.read(len(content) + 1))
  
imports: import os.path
  from tensorboard import test
  from tensorboard.compat.tensorflow_stub import compat, errors
  from tensorboard.compat.tensorflow_stub.io import gfile
label_desc: Use image node_id 22 for calling the FileIoTest obj's underlying member method code with example usage: obj.testEof() without return types